◦
If applicable, tell the RIP to group jobs together, so that printer temperatures remain more
stable between jobs.
◦
Modify your media preset as suggested in
Color reproduction tricks on page 53.
●
Irregular or isolated vertical bands
◦
Increase the vacuum level in steps of 10 mmH
2
O. Do not exceed the following limits: 20
mmH
2
O for banners, 35 mmH
2
O for vinyl, and 50 mmH
2
O for other substrate families.
◦
In backlit applications, increase the number of passes to 20 or more, and change the drying
temperature up and down in steps of 5°C.
◦
If the banding appears only at the beginning of the print, disable the cutter and advance the
substrate manually about 100–150 mm before the first print.
The print is deformed into a curved shape
This may occur as a result of substrate bow deformation. See The substrate has bow deformation
on page 68.
Misaligned colors
If the colors are misaligned in any direction, the printheads may be misaligned. This is likely if you
have not aligned the printheads for a long time, or if there has been a substrate jam. Align the
printheads if necessary (see
Align the printheads on page 9). You can check whether it is necessary by
using the printhead status plot (see
Use the printhead status plot on page 54).
Color intensity varies
If some printhead nozzles are in use while others in the same printhead are not, water evaporates
slowly from the ink in the unused nozzles, making the color more intense. Thus, in such cases you may
notice variations in color intensity in areas where the color of the image should be constant.
ENWW
The print is deformed into a curved shape
59
Troubleshoot images
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